Ments



V(No Model.)

R. B. OWEN.

GAR HEATER.

No. 372,275. Patented Oct. 25, 1887.

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UNITED STATES PATENT OEEicE.

RUSSELL B. OVEN, OF DETROIT, MICHIGAN, ASSIGNOR, BY MESNE ASSIGN- MENTS, T() THE DETROIT HEATING AND LIGHTING CGMPANY, OF' SAME PLAGE.

CAR-HEATER.

SPECIFICATION 'forming pari'. of Letters Patent No. 372,275, dated October 25, 1887.

Application filed March 10, 1887. Serial No. 230,320, (No model.)

To all whom it may concern:

Be it known that I, RUSSELL B. OWEN, of Detroit, in the county of Wayne and State of Michigan, have invented new and usefulImprovements in Car-Heaters; and I do hereby declare that the following is a full, clear, and

exact descriptionthereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to new and useful improvements in car-heaters.

It is the object of my invention to furnish a car-heater which is so constructed as to present an absolute guarantee against setting fire to a car in any of the contingencies` which a long experience has taught to guard against; and to this end I have embodied in my rconstruction the following principles:

First. I construct the whole fire-box and all portions communicating therewith in one single structure, in contradislinction to the usual practice of constructing it in detachable sections bolted or otherwise securedtogether. Experience has demonstrated that yhowever securely such sections may be secured together they are liable to come apart in case of accident.

Second. The use of castiron or other material liable to be broken in case of accidentis avoided where it may interfere with the paramount object of safety. g

Third.v The doors which afford access to the fire are doubly or triply guarded by safetydoors so arranged that their different manner of opening forms a lock against their being accidentally opened under any contingency.

Fourth. Theusual draft and smoke openings are so arranged that all danger of fire or cinders issuing through them is effectually guarded against.

Fifth. No portion of the heater which is liable to become hot enough to form a source of danger by contact with inflammable material is exposed.

In the drawings, which accompany this specification, Figure 1 is a vertical central section of a car-heater embodying the objects of my invention. Fig. 2 is a horizontal section on line x x orgy, both sections being alike.

The heater proper, A, is of the kind known the ordinary outside connections, by means of which the car is heated' in the manner well known. I do not intend to confine my self to any peculiar arrangement or connection of any portion of such water-jacket; but all the parts thereof are connectedl integrally by riveting, and no portion of the outside shell is exposed to the direct heat of the lire. This all-around water-jacketincloses the combustion-chamber, the heating-coils, if there are any provided, and the ash-pit within it, and where needed for strength the outer and inner shell may be stayed together in the usual manner, as shown in Fig. l. The egress of smoke and products of combustion is provided for through a perforated top plate, B, also riveted to the waterjacket, and with perforatious small enough to prevent incandescent coal or lia-me from passing through it, and over this I place an orna` mental outside cover, C, also firmly secured thereto, and which carries the usual exit-due, D. rIhe means provided for, to pass the gases and smoke from the combustion-chamber through the water-jacket on top consist in a suitable number of smoke-dues, F, preferably of small size, of the required number, so as to prevent, in case of upsetting, the spilling of the fire through them. These dues, if deemed necessary, may also be screened.

The lire and aslrpit doors I I2, respectively, are made withair-spaces to prevent their becoming heated on the outside, and for the ingress of air they are provided with perforations in suitable numbers, but small enough to prevent fire or ciuders issuing through them. The usual slides are omitted in these doors. These doors are hinged and may have suitable locking devices, and are flush on the outside with the water-jacket. Over these doors Isecurea sliding outside door, H, which runs in suitable guides secured to the outside of the water-jacket. This door, which covers both the ash-door and fire-door, is preferably of steel, has a locking device which locks it in its ICO closed position, and has perforations corresponding with the perforations iu the fire and ash-pit doors.

Over the outside of the whole heater I place a jacket, I', which may he, if desired, of ornamental shape to give the heater the usual ornamental outside ap pearaucc ofheing constructed in sections. It makes a tightjoiut ou top and bottom with the other paris of the heater, so as to prevent the access of air to the stove, except through the air-feeding devices in the doors of said jacket, said doors bei ng arranged inthe usual manner, preferably sliding, one communicating With-the fire-d oor and the other with the ash-pit door, and having the usual register for the admission of air.

Vhat I claim as my invention is- The combination, with the double shell of the heater, of the hollow perforated ash-pit door, the hollow perforated fire-door, each 2o made with airspaces to prevent their becoming heated on the outside, a sliding door over said doors and perforated as described, and an outside shell having` fire and ash-pit doors and airregisters, all substantially as described, and for 25 the purpose specified.

R. B. OVEN.

Vitnesses:

H. S. SPRAGUE, T. E. ROBERTSON. 

